Silage and liquid manure containers, containers in biogas plants, bunker silos and trench silos - Part 2: Silage and liquid manure containers and containers in biogas plants made of concrete— 26 стр.
Pipes and fittings of unplasticized poly(vinyl chloride) (PVC-U) with ring seal socket for non pressure underground drainage and sewerage - Part 3: Quality control and installation— 11 стр.
Prefabricated concrete manholes, unreinforced, steel fibre and reinforced for drains and sewers - Type 1 and Type 2 - Part 1: Requirements, test methods and evaluation of conformity— 39 стр.